I posted this in the 2018 thread.

2/25/19
SEA-IAH
AS350
MVPG
M Fare

3/10-11/19
IAH-JNU
AS413/75
MVPG
M Fare

Immediate upgrade as U space was available. Wife (MVPG), also upgraded on a companion fare.
2/21/19
JNU-SEA
AS76
MVPG
U fare now

I was checking the app on my flights and this itinerary had a schedule change requiring a call in to reservations. Turned out one flight had changed 10 minutes. While on the call, I realized I booked the wrong flight (wanted afternoon but booked early morning flight which we flew often in 2018). So I requested a change to the afternoon and the agent changed it, checked for upgrades and upgraded us.